Naperville to Millstadt is 281.9 miles and takes about 5h 24m via I 55 and I 255, with a fuel budget near $43 and enough daylight to finish in a day. This trip stays within Illinois, moving from the Midwest region to another part of the Midwest. It's a straightforward, mostly highway drive that can easily be completed in a single day. Plan for a consistent pace as you head south through the state.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
141 miles from Naperville, IL
A natural place for your longest stop of the day
, about 2h 43m into the drive
.
Main Roads
Road
Distance
Duration
I 55
252.7 mi
4h 34m
I 255
7.4 mi
8m
Millstadt Road
7 mi
12m
North Washington Street
5.3 mi
11m
Weber Road
3.9 mi
7m
New Missouri Avenue
1.2 mi
1m
South 88th Street
0.7 mi
1m
Washington Street
0.5 mi
<1m
Longest stretch:
I 55
— 252.7 mi, about 4h 34m
Traffic on I-55
Hour-of-day weekday pattern from 32 FHWA count stations on your route.
Peak
4 PM
~1,778 veh/hr typical
· worst 2,331
Quietest
2 AM
~165 veh/hr
Peak-to-quiet ratio
10.8×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 103 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Naperville, IL and Millstadt, IL.
1
Start on North Washington Street
5.3 mi·11 min·North Washington Street
Use the left lane.
2
Turn right onto Washington Street
0.5 mi·51 sec·Washington Street
3
Continue on Weber Road
3.9 mi·7 min·Weber Road
4
Take the ramp
0.4 mi·48 sec
Toward I 55 South: Bloomington
5
Merge onto I 55
106 mi·1 hr 55 min·I 55
Use the right lane.
6
Keep slight right at fork onto I 55
65 mi·1 hr 10 min·I 55
Toward I 55 South: Saint Louis, SpringfieldUse the straight / slight right lanes.
7
Keep slight left at fork onto I 55
82 mi·1 hr 28 min·I 55
Toward I 55 South: Saint LouisUse the straight / slight right lanes.
8
Take the exit
0.3 mi·33 sec
Exit 10Toward I 255: Memphis, Interstate 270
9
Keep slight left at fork
1.1 mi·2 min
Toward I 255 South: Memphis
10
Merge onto I 255
7.4 mi·8 min·I 255
Use the straight / slight right lanes.
11
Take the exit
0.3 mi·43 sec
Exit 17AToward IL 15 East: BellevilleUse the right lane.
12
Continue on IL 15
1.2 mi·1 min·New Missouri Avenue
13
Take the exit
0.2 mi·27 sec
Toward IL 157: Cahokia
14
Keep slight right at fork onto IL 157
0.7 mi·1 min·South 88th Street
15
Enter roundabout onto IL 13; IL 157
32 ft·0 sec·IL 13; IL 157
16
Continue on IL 13; IL 157
0.4 mi·45 sec·IL 13; IL 157
17
Turn left onto IL 157; IL 163
0.4 mi·43 sec·Old Missouri Avenue
18
Continue on IL 157; IL 163
499 ft·13 sec·Camp Jackson Road
19
Turn left onto IL 163
7.0 mi·12 min·Millstadt Road
20
Turn right onto IL 158
34 ft·0 sec·West Washington Street
21
Arrive at destination
IL 158
Trip Plan
Given the 5h 24m duration, departing Naperville in the morning is ideal to ensure you arrive in Millstadt with plenty of daylight. You can complete this trip in one day, but if you prefer a more relaxed pace, consider a brief stop around the halfway point. Keep an eye on your fuel gauge, especially during the long 252.7-mile stretch on I 55, as services can be more spread out. The estimated fuel cost is $43, so budget accordingly.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 141 miles from Naperville, IL, or about 2h 43m into the drive.
The longest continuous stretch on this route runs about 252.7 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 62 miles or 1h 17m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 141 miles or 2h 43m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 20m
Traffic, exits, and arrival timing usually matter more near Millstadt, IL than in the middle of the route.
Before You Leave
+
Open the route before leaving Naperville, IL so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Naperville, IL
This is one driving day of about 281.9 miles and 5h 24m.
Your first comfortable stop window is around 62 miles from Naperville, IL.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 55 for about 252.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 15
5 decision points cluster between mile 10 and 271.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
10 mi into trip|~20m in|I 55
Merge onto I 55
Merge point - match speed before joining. Lane positioning matters here
Use the right lane.
8
115.8 mi into trip|~2h 16m in|I 55
Keep slight right at fork onto I 55 toward I 55 South: Saint Louis, Springfield
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 55 South: Saint Louis, Springfield
7
180.7 mi into trip|~3h 26m in|I 55
Keep slight left at fork onto I 55 toward I 55 South: Saint Louis
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight right lanes.
Toward I 55 South: Saint Louis
6
262.7 mi into trip|~4h 54m in
Take the exit toward I 255: Memphis, Interstate 270
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 10
Toward I 255: Memphis, Interstate 270
7
271.5 mi into trip|~5h 6m in
Take the exit toward IL 15 East: Belleville
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the right lane.
Exit 17A
Toward IL 15 East: Belleville
Fuel & Cost
Regular Gas
$47.02 one way
$94.05 round trip
$4.24/gal25.4 MPG avg99 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.61
$51.11
$102.22
premium
$5.26
$58.37
$116.73
diesel
$6.18
$68.58
$137.15
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$47
Meals
$25–$50
Total
$72–$97
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 98.6 kg one way.
Prices: EIA weekly data, 2026-10-12.
Driving Electric?
About $30 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
84.6
1
$29.60
$13.53
Efficient EV
70.5
0
$24.67
$11.28
EV Truck/SUV
112.8
1
$39.47
$18.04
Gas CO2
99 kg
EV CO2
33 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Oct 17, 2026
Origin
Naperville, IL
Morning
in Naperville on Sunday
Local time
6:18 AM
CDT
Current temp
36°F
Patchy Frost
N 5 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued October 17 at 2:24AM CDT until October 17 at 9:00AM CDT by NWS Quad Cities IA IL
Freeze Warning
Freeze Warning issued October 17 at 2:22AM CDT until October 17 at 8:00AM CDT by NWS Chicago IL
Destination
Millstadt, IL
Morning
in Millstadt on Sunday
Local time
6:18 AM
CDT
Current temp
40°F
Clear
N 9 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued October 17 at 2:24AM CDT until October 17 at 9:00AM CDT by NWS Quad Cities IA IL
Freeze Warning
Freeze Warning issued October 17 at 2:22AM CDT until October 17 at 8:00AM CDT by NWS Chicago IL
53°F
Bloomington, IL
141 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
4 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
5h 24m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Springfield 1908 Race Riot National Monument
National Monument
In August 1908, a large White mob attacked the Black community in Springfield, Illinois. Rioters destroyed homes and businesses and lynched two men. The event led to the founding of the National Assoc...
In a growing Chicago neighborhood, diverse people and stories intertwined. All were seeking opportunity. Some succeeded. Others were limited—by race, gender, or economic status. Their stories came tog...
27 mi from route
~67 min detour
Free
near mile 9.7
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This drive is predominantly on highways, with 92% of the route utilizing major arteries like I 55 and I 255. You'll experience a long stretch of 252.7 miles on I 55, which means plenty of opportunities for steady cruising. The transition to surface roads like Millstadt Road will occur later in the trip, marking the end of the high-speed segments.
92% highway — fuel and pacing are the main things to plan.
21 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 252.7 mi on I 55.
How Hard Is This Drive?
9/10
This is a straightforward highway drive that stays mostly on I 55 and I 255. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 10 miles in near I 55.
Driving Effort9/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 15 significant decision points across 281.9 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 10 miles (I 55): Merge point - match speed before joining. Lane positioning matters here; at 115.8 miles (I 55): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 180.7 miles (I 55): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
767 ft500 ft
Total Climb
399 ft
Total Descent
490 ft
Highest Point
767 ft
~100.7 mi in
Elevation Range
267 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Naperville, IL to Millstadt, IL, road signs begin pointing toward Springfield along the way.
Naperville is a bedroom community in the Chicagoland area. In 2008, Money magazine ranked Naperville third on its list of the 100 best places to live in the United States.
Doable as a same-day drive at 5h 24m. Total distance: 281.9 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 24m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (92%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 252.7 miles on I 55. The full list of main roads is in the Roads section above.
Yes — we found about 30 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Millstadt, IL before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 30 rest areas along the route for bathroom stops.
The main spots that need attention: at 10 miles (I 55): Merge point - match speed before joining. Lane positioning matters here; at 115.8 miles (I 55): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 180.7 miles (I 55): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Springfield 1908 Race Riot National Monument and Pullman National Historical Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 5.4 hours each way, a round trip means 10.8 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Millstadt, IL before the return drive.
